200 means everything is OK right? But still nothing happens. I have commented out the code in the updateSales method and use an alert box instead. ONCE this worked. But then I changed something and it has never worked again.

Also is there a reason Firefox takes so long to display alterations in my source code? I upload new versions to my website, and it still displayed the old source code. Which is making this even more frustrating trying to figure out.

Here is my code. Maybe I'm just missing something really stupid. I haven't added the css file yet, as I don't see the need.

Thanks for any help. I really don't want to continue with this chapter until I get this sorted out.